Composition for impregnating fibrous materials



Patented June 28, 1927.

UNITED STATES PATENT OFFICE.

COMPOSITION FOR IMPREGNATING FIBROUS MATERIALS.

No Drawing. Application filed November 1, 1926, Serial No. 145,698, and in the Netherlands October 28,

This invention relates to the treatment of fibrous materials, such as-cotton, hemp and the like, and of articles made from such materials;

For certain purposes. e. g., in the equipment of ships, and' particularly for ropes, it has heretofore been found necessary to utilize manila hemp, which material, when treated with tar, is able to withstand the influences of weather and of sea water.

The invention renders possible the substitution for manila hemp of fibrous materials which have heretofore been considered unsuitable because insuseeptible to treatment 10 to adapt them to answer requirements.

The invention is based on the discovery of a product suitable for the impregnation of such fibrous materials and of articles composed of such materials which endows them with the required properties.

Essentially, the product in question is compounded of parafiin, petroleum jelly, naphthaline and turpentine in intimate admixture.

For the preparation of this product a mixture of molten paraflin solid at normal temperatures and petroleum jelly is first heated to a temperature between 70 and 80 C. to

form a homogeneous mass which is then rther heated to a temperature between 100 and 130 0., referably 120 to 130 0., whereupon nap thaline is added. 1 The mix ture of paraflin, petroleum jelly and naphthaline-is then allowed to cool to a temperature between 90 and 80 0., at which point turpentine is added, preferabl while stirrin The mixture in warm OOIILltlOIl is availab e for the immediate impregnation of the fibrous materials or it may be allowed. to

'name to this specification.

solidify and be stored in barrels, it being 10 understood that in this event it requires to be reheated for use as an impregnating agent.

Suitable proportions for the in redients are as follows, the measurements being by weight:-15 to 30% paraffin, -6 to 15% petroleum jelly, and 3 to 10% naphthaline, theremainder being turpentine.

The fibrous materials or articles prepared from such materials are impregnated with the mixture aforesaid, thelatter being at a temperature of about 80 0., and then dried centrifugally or otherwise and exposed to the air.

It is found that fibrous materials so impregnated, without any other treatment, are capable. of withstanding the influence of water, especially of sea water, and have, a long life. This is particularly true of hemp fibres, particularly from Java, wh ch are naturally unsuited to withstand the mfluence of sea water.

In lieu of treating the materials in fibrous form I may treat finished articles prepared from fibrous materials, such, for example, as fishing nets.

By petroleum jelly is meant the commodity sold as Vaseline.

I claim A composition for impregnation of fibrous materials orv articles made from fibrous materials consisting of a. homogeneous mixture of 15 to 30% of parafl'm, 6 to 15% petrooleum jelly, 3 to 10% naphthalene, and turntine. 15

In testimony whereof I have signed my W. TOM. 

